Perfect Binary Tree

Famous quotes containing the words perfect and/or tree:

    We say justly that the weak person is flat, for, like all flat substances, he does not stand in the direction of his strength, that is, on his edge, but affords a convenient surface to put upon. He slides all the way through life.... But the brave man is a perfect sphere, which cannot fall on its flat side and is equally strong every way.
    Henry David Thoreau (1817–1862)

    A tree there is that from its topmost bough
    Is half all glittering flame and half all green
    Abounding foliage moistened with the dew;
    And half is half and yet is all the scene;
    And half and half consume what they renew....
    William Butler Yeats (1865–1939)